CVE-2025-47905

State: Published
Severity: 5.4 Medium
Published: May 13, 2025
Updated: May 29, 2025
Reserved: May 13, 2025

Description

Varnish Cache before 7.6.3 and 7.7 before 7.7.1, and Varnish Enterprise before 6.0.13r14, allow client-side desync via HTTP/1 requests, because the product incorrectly permits CRLF to be skipped to delimit chunk boundaries.

Scores

CVSS	Score	Vector	Source
3.1	5.4 Medium	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N	mitre

Weaknesses

CWE-444 Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')

Affected Products

Product	Versions
Varnish Cachevarnish-software	before 6.0.14 LTSAffected 7.0.0 to before 7.6.3Affected 7.7.0 to before 7.7.1Affected

References

https://varnish-cache.org/security/VSV00016.html
http://www.openwall.com/lists/oss-security/2025/05/15/2
https://lists.debian.org/debian-lts-announce/2025/05/msg00040.html

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